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1994 Mazda MX3 GS 1.8 V6 High NOx and HC Failure 1994 Mazda mx3 GS 1.8 V6. After looking at past maintenance records, I find that this vehicle has history of High HC and NOX. Also, it is on its third Catalytic Converter. I just purchased the car and it runs great and does not have any CEL's and is a...

I am a Retired Army Master Sergeant with 20+ years of Helicopter experience. Since retirement, I have repaired, rebuilt and restored a number of American Cars including 64 Chevelle 2 Door Sport and 65 Mustang Fastback. Recently I got involved with Grandson and repaired two Acura 3.0 CL's. That was m...